Half axle gear handle lubricating structure

Abstract

The utility model discloses a half axle gear handle lubricating structure, which relates to the field of differential accessories and comprises a step plate and a shell, gear teeth are annularly arranged at the top of the step plate at equal intervals, an axle is fixedly mounted at the bottom of the step plate, and flat oil guide grooves are symmetrically formed in two sides of the axle. And an oil leakage groove is formed in the end face of the flat part oil guide groove, the shell is arranged outside the step plate, and a linear shaft is rotationally connected to the interior of the shell. According to the half axle gear handle lubricating structure, the two symmetrical flat parts are designed on the outer circle of the handle of the half axle gear, and the oil leakage grooves are designed in the end faces corresponding to the flat positions of the handle, so that when the half axle gear in a differential mechanism rotates at a high speed, lubricating oil can rapidly circulate in the half axle gear and the shell, and good lubricating performance between the half axle gear and the shell is guaranteed; and abnormal sound of a differential mechanism and bumpy feeling of a vehicle caused by insufficient lubrication and poor effect of the half axle gear are avoided, and even the situation that the vehicle cannot run, deviates and shakes violently is avoided.

Description

Technical Field

[0001] The utility model relates to the field of differential accessories, in particular to a lubricating structure for a half-axle gear shank. Background Art

[0002] Differential side gears play a crucial role in automobiles. They not only transmit power but, more importantly, redirect torque and achieve differential rotation. Their performance and condition directly impact the vehicle's driving safety and comfort. Therefore, the lubrication of the side gear's shank during assembly with the housing is particularly important.

[0003] Current axle gear shank designs are typically cylindrical, meeting assembly and lubrication requirements through increased roughness and controlled assembly dimensions. The outer diameter of the axle shank and the housing form a clearance fit, and during operation, lubricant is applied through the clearance between the axle gear and the housing. This can lead to insufficient lubrication and poor lubrication, ultimately causing unusual noises, jerking sensations, and even vehicle immobilization, deviation, and severe shaking.

[0004] Therefore, it is urgent to improve this shortcoming. The utility model studies and improves the existing structural deficiencies and provides a half-axle gear shank lubrication structure. Utility Model Content

[0005] The purpose of the utility model is to provide a lubricating structure for the shank of a half-axle gear to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a half-axle gear shank lubrication structure, comprising a step plate and a housing, the top of the step plate is annularly and equidistantly arranged with gear teeth, and the bottom of the step plate is fixedly mounted with a wheel axle, and flat oil guide grooves are symmetrically provided on both sides of the wheel axle, and the end faces of the flat oil guide grooves are provided with oil leakage grooves, the housing is arranged on the outside of the step plate, and the interior of the housing is rotatably connected to a straight shaft, and a planetary gear is movably installed inside the housing, a planetary gasket is arranged between the planetary gear and the housing, the inner surface of the planetary gasket is fit-connected to the outer surface of the planetary gear, and a half-axle gasket is installed between the end face of the wheel axle and the housing, and a pin is installed inside the housing.

[0007] Furthermore, the gear teeth are arranged in a ring shape and at equal distances on the top of the step plate, and the gear teeth and the step plate are integrated.

[0008] Furthermore, the flat oil guide groove is symmetrically opened on both sides of the wheel axle, and the length of the flat oil guide groove is not less than two-thirds of the length of the wheel axle, and the depth of the single-sided flat oil guide groove is 1.5 to 2.5 mm.

[0009] Furthermore, the oil leakage groove is opened on the end face of the wheel axle, and the depth of the oil leakage groove is not less than 1.5 mm, and the width of the oil leakage groove is not less than 4 mm.

[0010] Furthermore, the shell is connected to the step plate through a half-axle gasket, and the gap between the inner surface of the shell and the end face of the wheel axle is no more than 1 mm.

[0011] Furthermore, the planetary gear is connected to the housing through a planetary gasket and a straight shaft, and the inner side of the planetary gear is in close contact with the tooth-shaped portion of the gear teeth.

[0012] The utility model provides a lubrication structure for the shank of axle shaft gear, which has the following beneficial effects:

[0013] 1. The utility model designs two symmetrical flat portions on the outer circle of the shank of the axle shaft gear, and designs oil leakage grooves on the end faces corresponding to the flat portions of the shank. When the axle shaft gear in the differential rotates at high speed, the lubricating oil can quickly flow through the axle shaft gear and the housing to ensure good lubrication between the two, thereby avoiding the situation where the axle shaft gear is not fully lubricated and the lubrication effect is poor, resulting in abnormal noise in the differential, a bumpy feeling in the vehicle, and even the vehicle being unable to drive, running off the track, and shaking violently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of a half-shaft gear shank lubrication structure of the utility model;

[0015] Figure 2 This is a schematic top view of a lubrication structure for a half-axle gear shank according to the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the axle gear shank lubrication structure of the utility model

[0017] Figure 4 The utility model is a schematic diagram of the assembly structure of a half-axle gear shank lubrication structure.

[0018] In the figure: 1. Step plate; 2. Gear teeth; 3. Axle; 4. Flat oil guide groove; 5. Oil leakage groove; 6. Housing; 7. Slotted shaft; 8. Pin; 9. Planetary gear; 10. Planetary gasket; 11. Half-shaft gasket. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figure 1-Figure 3As shown, a lubrication structure for the shank of a half-axle gear includes a step plate 1 and a housing 6. The top of the step plate 1 is provided with gear teeth 2 in a circular shape and at equal distances. The gear teeth 2 are arranged in a circular shape and at equal distances on the top of the step plate 1, and the gear teeth 2 and the step plate 1 are integrated. The bottom of the step plate 1 is fixedly mounted with a wheel axle 3, and flat oil guide grooves 4 are symmetrically opened on both sides of the wheel axle 3. The flat oil guide grooves 4 are symmetrically opened on both sides of the wheel axle 3, and the length of the flat oil guide grooves 4 is not less than two-thirds of the length of the wheel axle 3, and the depth of the single-sided flat oil guide groove 4 is 1.5 to 2.5 mm, and an oil leakage groove 5 is opened on the end face of the flat oil guide groove 4, the oil leakage groove 5 is opened on the end face of the wheel axle 3, and the depth of the oil leakage groove 5 is not less than 1.5 mm, and the width of the oil leakage groove 5 Not less than 4mm, through the provision of an oil leakage groove 5, the lubricating oil can easily pass through the oil leakage groove 5 into the interior of the flat oil guide groove 4, so as to achieve the purpose of assisting the circulation of the lubricating oil, the shell 6 is arranged on the outside of the step plate 1, and the shell 6 is connected to the step plate 1 through a half-axle gasket 11, and the inner surface of the shell 6 and the end face gap of the wheel axle 3 are not greater than 1mm, so that the inner surface of the shell 6 and the end face of the wheel axle 3 can fit tightly, and the internal rotation of the shell 6 is connected to a straight shaft 7, and a planetary gear 9 is movably installed inside the shell 6, and a planetary gasket 10 is provided between the planetary gear 9 and the shell 6, the inner surface of the planetary gasket 10 is fitted with the outer surface of the planetary gear 9, and a half-axle gasket 11 is installed between the end face of the wheel axle 3 and the shell 6.

[0021] like Figure 4 As shown, the top of the step plate 1 is provided with gear teeth 2 in a circular shape at equal distances, and the bottom of the step plate 1 is fixedly installed with a wheel axle 3, and flat oil guide grooves 4 are symmetrically provided on both sides of the wheel axle 3, and the end face of the flat oil guide groove 4 is provided with an oil leakage groove 5, a housing 6 is provided on the outside of the step plate 1, and the interior of the housing 6 is rotatably connected to a straight shaft 7, and a planetary gear 9 is movably installed inside the housing 6, the planetary gear 9 is connected to the housing 6 through a planetary gasket 10 and the straight shaft 7, and the inner side of the planetary gear 9 is fit-fitted with the tooth-shaped portion of the gear teeth 2, a planetary gasket 10 is provided between the planetary gear 9 and the housing 6, the inner surface of the planetary gasket 10 is fit-fitted with the outer surface of the planetary gear 9, and a half-axle gasket 11 is installed between the end face of the wheel axle 3 and the housing 6, and a pin 8 is installed inside the housing 6.

[0022] In summary, the lubrication structure of the half-axle gear shank is first based on Figures 1 to 4In the structure shown in the figure, when the lubricating oil enters the interior of the housing 6, the oil leakage groove 5 cooperates to allow the lubricating oil to penetrate from the end face of the axle 3 and flow to the flat oil guide groove 4. Then, the flat oil guide groove 4 cooperates to assist the lubricating oil to flow in the gap between the half-shaft gear and the housing 6, thereby ensuring good lubrication between the two. At the same time, the lubricating oil can also enter the interior of the housing 6 to improve the lubrication between the housing 6 and the straight shaft 7 and the planetary gear 9.

[0023] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A lubricating structure for a half-axle gear shank, comprising a step plate (1) and a housing (6), characterized in that: The top of the step plate (1) is provided with gear teeth (2) in an annular shape and at equal intervals, and a wheel axle (3) is fixedly installed on the bottom of the step plate (1), and flat oil guide grooves (4) are symmetrically provided on both sides of the wheel axle (3), and an oil leakage groove (5) is provided on the end face of the flat oil guide groove (4), the housing (6) is provided outside the step plate (1), and the interior of the housing (6) is rotatably connected to a straight shaft (7), and a planetary gear (9) is movably installed inside the housing (6), a planetary gasket (10) is provided between the planetary gear (9) and the housing (6), the inner surface of the planetary gasket (10) is fitted and connected to the outer surface of the planetary gear (9), and a half-axle gasket (11) is installed between the end face of the wheel axle (3) and the housing (6), and a pin (8) is installed inside the housing (6).

2. The lubrication structure for the shank of the side gear according to claim 1, characterized in that: The gear teeth (2) are arranged in an annular shape at equal distances on the top of the step plate (1), and the gear teeth (2) and the step plate (1) are arranged in an integrated manner.

3. The lubrication structure for the shank of the side gear according to claim 1, characterized in that: The flat oil guide groove (4) is symmetrically arranged on both sides of the wheel axle (3), and the length of the flat oil guide groove (4) is not less than two-thirds of the length of the wheel axle (3), and the depth of the single-sided flat oil guide groove (4) is 1.5 to 2.5 mm.

4. The lubrication structure for the shank of axle gear according to claim 1, characterized in that: The oil leakage groove (5) is provided on the end surface of the wheel axle (3), and the depth of the oil leakage groove (5) is not less than 1.5 mm, and the width of the oil leakage groove (5) is not less than 4 mm.

5. The side gear shank lubrication structure according to claim 1, characterized in that: The housing (6) is connected to the step plate (1) via a half-axle gasket (11), and the gap between the inner surface of the housing (6) and the end surface of the wheel axle (3) is no more than 1 mm.

6. The side gear shank lubrication structure according to claim 1, characterized in that: The planetary gear (9) is connected to the housing (6) via a planetary gasket (10) and a straight shaft (7), and the inner side of the planetary gear (9) is in close contact with the tooth-shaped portion of the gear teeth (2).

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